Freight-car door.



A. HOILAND.

V FREIGHT GAB. DOOR. APPLICATION FILED APR. 21, 1913.

- Patented June 16,191;

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w/ a M o H r w fl WITNESSES- 8V ATTORNEYS A. HOLLAND. FREIGHT CAR DOOR.

: APPLICATION FILED Armmflbla. I I 1,100,566. Patented June 16,1914.

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INVENTOR /4 HNO ATTORNEYS aux/11111 11111! UNITED STATES PATENT ora ion,

ALBERT HOILAND, F NOME, NORTH DAKOTA.

FREIGHT-CAR DOOR.

Specification of Letters Patent.

Patented June 16, 19145 Application filed April 21, 1913. Serial No.762,528.

To all whom it may concern Be it known that 1, ALBERT HOILAND, a

I citizen of the United States, and a resident a door which may beeasily opened even when the car is filled, and which may be swung up inposition out of the way so as to facilitate the loading or unloading ofthe car. V 4

A further object oi my invention is to provide a telescopic door havingan extension which may be used when the car is being 'lillod with grain,or other light material.

Other objects and advantages will appear in the following specificationand the novel features of the device still be particularly pointed outin the appended claims.

My invention is illustrated in the art-onipanying drawings forming partof this application in which Figure l is a view. of the door from theinside of the out", his. 9 is a. section along the line 2--2 of Fig. 1,Fig.3 is a section along the line 3--3 oi Fig. L t le. t is a view ofthe outside of the door showing; the roller bearings. Fig. 5 is a planview of the upper telescopic section, Fifi. ('3 is a detail sectionthrough one of the roller bearings, and Fig. 7 is a detail view showingthe manner ot suspending the door near the ceiling'or roof of the can.

In carrying out my invention I provide a main body portion 1 which ismade of any suitable material. The body portion is provided at its edgeswith metal hearingframes 2, which are preferably U-shaped incrosssection, and which carry roller hearings or other anti-frictionmeans-3, The body portion 1 is preferably recessed at 4 to give theroller bearings 3 plenty of play, as shown in Fig. 6. One edge of theU-shaped bearny suitable; holdld. between the- 7. The oute'r edge of thedoors may be protected by the L-shaped plates 8 (see Fig. 6).

On the inner side of the door near the bottom thereof are L-shaped guideplates 9 for centering the door and preventing lateral movement. Similarplates 9 only he provided at the top. The top of the door is providedwith bearings 10' which are pref erably integral with the rollerbearing, frame A red ii is carried by these hearings and is provided atits center with a ratchet 12. A lever 13 has forked and 15 whic" isloosely mounted on the rod 11, the central portion of the fork having; ashoulder i5" arranged engage the teeth of: the ratchet 12 when thelever-is pushed toward the rod 11..

Chains 16 are secured to the upper portion of the door train-e i? andthe opposite ends of the chains are-secured the pro-- iectinn portionsof the rod 1]. as shown in Figs. 1 and 4.. These fiains are adapted-tohe Wound upon the rod it when the ratchet is rotated by the lever 13.

The body .portion 1 of the door does not extend the full height of thedoor opening.

in order to eonipletely cover the door 1'. preride a telescopic doormember 18 which is disposed on the inside of the door member 1. Themember 18 is provided with a curred portion 18* arranged, to clear theratchet as shown in Fig. The ends oi the curved portion is are bent.laterally and- ..hers in are designed to pass through the loops 21, soas to guide; the telescopic member 18 in its movement.

From the foregoin description of the various parts of the device theoperation there of may be readily understood.

When it is desired to ill the car with grain or other light; materialthe telescopic section 18 may be raised to its full height and supportedfrom the chainlfi by means of a pin such as that shown at 22 which mayhe passed through one of the links of the chain justbeneath the guideloop .21. The pressure-of the grain on the telescopic member 18 isresisted by the engagement of the ends of the member 18 with the doorframe, asshown in 'Fi 3, while the pressure of the grain against tiebody portion 1 is resisted by the engagement of the rollers 3 with thedoor frame 19. Now when it is desired to open the door the lever 13 isdisengaged from the hook 24, pushed inwardly until the portion 15engages the teeth of the ratchet 12 and the lever is lifted, therebyturning the rod and the ratchet 12 and Winding up the chain, thuslifting the door portion 1. A spring locking dog 25 (see Fig. 2)prevents the reverse movement of the ratchet. "It will be notedthat thebody portion 1 of the door will rise, the two sections 1 and 18 formingtelescopic members for permitting this movement. I

In case the car is to be loaded with coal or other heavy material andonly the lower portion of the door used the pins 22 may be removed andthe upper portion may be let down into the position shown in Fig. 1.When in this position the movement ofv the lever 13 for opening the doorwill raise both sections. In some instances the upper section maybe leftoff entirely where heavy nniterial such as coal is being transported.

It will be noted that the lever and ratchet forms a' powerful liftingagent to overcome the pressure of the material behind the door.Furthermore the rollers 3 make the act of li ftin g thc doorcomparatively easy since the friction is greatly reduced and the door istherefore lifted with comparative ease. The flexible strip 5 preventsany loss of grain between the door and the door frame.

oi a hook 28 or any other suitable means.

The unloading or loading of the car may thus be facilitated since thedoor is out of the way.

I claim:

1 A freight car door comprising a main body portion having rollerbearing members carried by thc,door at the side edges there ofand-arranged to bear against the door frame, means for raising andlowering said body portion, an auxiliary door member having a portionarranged to lie next to the inner side of said main body portion. andhaving spacing lugs arranged to bear on said body portion, said mam bodyportion being movable with respect to said auxiliary door portion, andthenends of said auxiliary door portion being bent toward and beingarranged to bear against the side members of the door frame.

2. A freight car door comprising a main body portion having rollerbearin members carried by the door at the side edges thereof andarranged to bear against the door frame. means for raising and loweringsaid body portion, said means comprising a rotatable. shaft carried bysaid body poi tion, chains secured to the door casing and adapted to hewound around the shaft, means for rotating the shaft, and an anxil iarydoor member having a portion arranged to lie next the inner side of saidmain body portion and having spacing lugs arranged to bear against saidmain body portion, said main body portion being movable with respect tosaid auxiliary door portion, and the ends of said auxiliary door portionbeing bent toward and being arranged to bear against thcside members ofthe door frame.

ALBERT I-IOILAND. Witnesses:

L. HoosTAn, T. DARREN

